Transformational–transactional leadership and upward influence: The role of Relative Leader–Member Exchanges (RLMX) and Perceived Organizational Support (POS)

By utilizing the resource theory of social exchange (Foa & Foa, 1974), we attempted to cast light on the dynamics of the relationship between transformational–transactional leadership and employees' upward influence tactics. Using data collected in two time points (N = 200, 1 year apart), we found perceptions of transformational leadership (Time 1) to be positively related to the use of soft and rational upward influence tactics (Time 2) whereas transactional leadership (Time 1) was positively related to the use of soft and hard upward influence tactics (Time 2). We also found support for a 3-way interaction between transformational–transactional leadership, relative Leader Member Exchanges (RLMX) and Perceived Organizational Support (POS) on employees' upward influence tactics. Specifically, in resource-constrained conditions (low RLMX and low POS), employees were likely to use soft tactics to influence a manager they perceived as transformational to a greater extent than in resource-munificent conditions. They were also likely to employ higher levels of soft and hard tactics to influence a transactional manager in resource-constrained rather than in resource-munificent conditions.     

Salinization alters ecosystem structure in urban stormwater detention ponds

Stormwater ponds now comprise a significant portion of standing water in urban areas. These ponds act to sequester excess run-off and pollutants, such as road salt deicers. While these man-made ponds are not intended to serve as freshwater ecosystems, it is becoming clear that they do provide habitat for many organisms, but we know little of their ecosystem structure, function and interactions with pollutants. From April through June 2009, we surveyed 8 stormwater ponds in the Red Run Watershed, Baltimore County, Maryland, USA to describe patterns in aquatic food webs associated with a gradient in road salt inputs. Periphyton, phytoplankton and zooplankton samples were collected from each pond every 4–6 weeks. Specific conductance, a measure of chloride salt loading, among the 8 ponds varied widely throughout the survey, ranging from 99 μS cm⁻¹ to 19,320 μS cm⁻¹. Low (average = 404 +/− 82.6 (SE) μS cm⁻¹) and medium (average = 1749 +/− 267 (SE) μS cm⁻¹) conductance ponds had lower algal biomass and higher densities of zooplankton taxa relative to high (average = 7231 +/− 2143 (SE) μS cm⁻¹) conductance ponds, which were largely devoid of all zooplankton through the end of May. The observed decline in zooplankton density along an increasing chloride gradient is consistent with experimental results of road deicer effects, suggesting algal resources are possibly freed from grazing pressure as zooplankton consumers are negatively impacted by road salt exposure. Our results highlight the potential for both direct and indirect effects of road deicers on freshwater communities.     

Prevalence of same‐gender sexual behavior and HIV in a probability household survey in Mexican men

The prevalence of male same‐gender sexual behavior in Mexico City in relation to HIV transmission was studied. A household probability survey of 8,068 adult men was conducted in 1992–93 using the Mexican National Health Survey sampling frame. The response rate was 59%. Differences between respondents and nonrespondents indicated no evidence for significant bias. A random subsample of 1,116 individuals provided serum or saliva for HIV testing. An estimated 2.5% of men practiced same‐gender sex in their lifetime: 2.1% (95% CI: 1.7 ‐ 2.4%) reported bisexual behavior and 0.4% (95% CI: 0.3 ‐ 0.6%) reported exclusively homosexual behavior. Among bisexuals, 70% reported sex only with women in the previous year, 7% reported sex only with men, 13% reported sex with both, and 10% were sexually inactive. A condom was used by 46% in their last homosexual encounter. An estimated 0.1% of married men were homosexually active in the previous year. The HTV prevalence estimate was 0.2% in the sample. The rate was 4% among homosexual/bisexual men and 0.09% in heterosexual men (p < 0.0001). Estimates of homosexual behavior and HTV infection from this population‐based sample are lower than results from nonprobability studies. The low prevalence of condom use anticipates future growth of the epidemic in the homosexual population. Bisexual behavior appeared to be infrequent and transitory, particularly among married men.     

Infants’ Discrimination of Familiar and Unfamiliar Accents in Speech

This study investigates infants’ discrimination abilities for familiar and unfamiliar regional English accents. Using a variation of the head‐turn preference procedure, 5‐month‐old infants demonstrated that they were able to distinguish between their own South‐West English accent and an unfamiliar Welsh English accent. However, this distinction was not seen when two unfamiliar accents (Welsh English and Scottish English) were presented to the infants, indicating they had not acquired the general ability to distinguish between regional varieties, but only the distinction between their home accent and unfamiliar regional variations. This ability was also confirmed with 7‐month‐olds, challenging recent claims that infants lose their sensitivity to dialects at around that age. Taken together, our results argue in favor of an early sensitivity to the intonation system of languages, and to the early learning of accent‐specific intonation and potentially segmental patterns. Implications for the development of accent normalization abilities are discussed.     

Reflective practice: action learning sets for managers in social work

The author evaluates action learning sets, established as part of a management development programme, for managers in social work. The impact on management practice, the processes contributing to effectiveness and the elements of learning that participants viewed as making most difference to their management practice are identified. The issues brought for consultation are described, including working with contradiction and paradox. It is concluded that participants experience action learning to make a positive contribution to their development as managers in a challenging environment.     

Estimation of long-run inefficiency levels: a dynamic frontier approach

Cornwell, Schmidt, and Sickles (1990) and Kumbhakar (1990), among others, developed stochasticfrontier production models which allow firm specific inefficiency levels to change over time. These studies assumed arbitrary restrictions on the short-run dynamics of efficiency levels which have little theoretical justification. Further, the models are inappropriate for estimation of long-run efficiencies. We consider estimation of an alternative frontier model in which firmspecific technical inefficiency levels are autoregressive. This model is particularly useful to examine a potential dynamic link between technical innovations and production inefficiency levels. We apply our methodology to a panel of US airlines.     

Mapping the boundaries of courtship disorder

The courtship disorder hypothesis maintains that voyeurism, exhibitionism, toucheurism‐frotteurism, and the preferential rape pattern are expressions of the same disorder (courtship disorder). Earlier studies had shown that with the exception of the preferential rape pattern these paraphilias co‐occur to a reasonably high degree. The present study (1) demonstrated that the preferential rape pattern co‐occurs with the above reasonably well established expressions of courtship disorder to a higher degree than other main paraphilic activity patterns do and (2) supported the conjecture that in addition to an erotic preference for unfamiliarity of target person‐or‐object (noted by earlier authors), three other paraphilic target‐person or object preferences may be connected with courtship disorder, though they are not at all virtually obligatory as is erotic unfamiliarity. These are choosing children and adults alike as target persons of the paraphilic activities, non‐gender dysphoric transvestism, and fetishism.